Jacobs Digital

09 480 5903

www.jacobsdigital.co.nz

9 Mokoia Road

Birkenhead, Auckland 0626

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Monday to Saturday

Skywatcher Esprit 150ED 0.77X Reducer / Flattener

SKU: SWA-ESPRIT150FRF

Skywatcher Esprit 150ED 0.77X Reducer / Flattener - Jacobs Digital

Our Price

$793.00

$793.00

Green truck Unually Ships in 6-8 Weeks An order for this can be placed with our supplier, and usually ships within the specified timeframe.



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About this product

Designed specifically for their Esprit 150 ED APO f/7 refractor optical tube, the Sky-Watcher 0.77x Focal Reducer / Flattener is an indispensable dual-purpose accessory for astrophotography and astroimaging. The field flattener corrects the inherent spherical aberration of curved lenses which, if left uncorrected, causes images to appear distorted at the edges of the field of view. As a focal reducer, it reduces the focal ratio of the scope which translates into wider fields of view with shorter exposure times—allowing you to capture more images in the same amount of time without sacrificing quality.

Focal Reducer
  • Decreases the f/ratio from the optical tube's native f/7 to f/5.4
  • Reduces exposure time by 68% compared to native f/7 with the same results
  • Reducing exposure times allows you to capture more images in the same amount of time with the ability to use different filters to produce better images in post with stacking techniques
  • 90mm back-focus or 55mm using the included back focus spacer and M48 ring
  • 2" filter threads for mounting filters such as moon, polarizing, light pollution, and nebulae into the light path
Field Flattener
  • Reduces spherical aberrations across the entire field of view, produces flat images without curvature or streaking at the edges
  • 36mm fully illuminated field, compatible with both APS-C and full frame sensors
  • 2.54 x 1.7° field of view when used with a full frame camera
  • 1.66 x 1.11° field of view when used with APS-C crop sensor

 

 Weight: 5.34oz (152g)
• Comes with 2 wing size options as standard for perfect fit.
• Mil Spec Materials and Polymer hardware
• Laser-engraved polymer bungee channels
• Proprietary universal rear pod and next gen central retention
• Rear loops for AA and CR123 NVG Batteries
• Made in Israel

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